/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
 * licenses this file to You under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package org.apache.commons.exec.launcher;

import java.io.File;
import java.io.IOException;
import java.util.Map;

import org.apache.commons.exec.CommandLine;
import org.apache.commons.exec.environment.EnvironmentUtils;

/**
 * A command launcher for JDK/JRE 1.3 (and higher). Uses the built-in
 * Runtime.exec() command
 */
public class Java13CommandLauncher extends CommandLauncherImpl {

	/**
	 * Constructor
	 */
	public Java13CommandLauncher() {
	}

	/**
	 * Launches the given command in a new process, in the given working
	 * directory
	 * 
	 * @param cmd
	 *            the command line to execute as an array of strings
	 * @param env
	 *            the environment to set as an array of strings
	 * @param workingDir
	 *            the working directory where the command should run
	 * @throws IOException
	 *             probably forwarded from Runtime#exec
	 */
	public Process exec(final CommandLine cmd, final Map env,
			final File workingDir) throws IOException {

		String[] envVars = EnvironmentUtils.toStrings(env);

		return Runtime.getRuntime().exec(cmd.toStrings(), envVars, workingDir);
	}
}
